html, body {
    height: 100%;
    margin: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    background-image: url('../images/bg.jpg'); /* 确保引号闭合 */
    background-size: cover; /* 使背景图像覆盖整个页面 */
    background-repeat: no-repeat; /* 防止背景图像重复 */
    margin: 0;
}


.container {
    padding: 20px;
    text-align: center;
}

.avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
}

nav {
    background-color: #007bff;
    padding: 10px;
    text-align: center;
}

nav a {
    color: white;
    margin: 0 20px;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}
